Project rename and restructure

hopper/enums.py

@@ -0,0 +1,20 @@
+from enum import Enum, auto
+
+
+class Direction(Enum):
+    LEFT = "left"
+    RIGHT = "right"
+    UP = "up"
+    DOWN = "down"
+
+
+class ObjectType(str, Enum):
+    NONE = auto()
+    OBSTACLE = auto()
+    PLAYER = auto()
+    DESTINATION = auto()
+
+
+class PlayerMoveResult(Enum):
+    OK = auto()
+    DESTINATION_REACHED = auto()